/* ========== Soju Etiquette 101 Section ========== */

:root {
  /* Soju Dreams - Front Card Colors */
  --soju-bg-front: #22212B;
  --soju-border-front: #C3B6FF;
  --soju-text-front: #F6E6FF;
  --soju-glow-front: rgba(195, 182, 255, 0.3);

  /* Soju Dreams - Back Card Colors */
  --soju-bg-back: #2B2833;
  --soju-border-back: #FFD6A5;
  --soju-text-back: #FFF6E3;

  /* Soju Dreams - Accent Colors */
  --soju-lavender: #C3B6FF;
  --soju-peach: #FFD6A5;
  --soju-accent-pink: #FFB6D9;
  --soju-text-dark: #22212B;
}

/* Header block */
.etiquette-header-block {
  margin: 80px auto 30px;
  width: min(1200px, calc(100% - 40px));
  text-align: center;
}

.etiquette-header {
  font-family: 'Press Start 2P', monospace;
  font-size: 1.5rem;
  color: var(--soju-lavender);
  margin: 0 0 15px;
  text-shadow: 0 0 15px var(--soju-glow-front);
  animation: glow-lavender 3s ease-in-out infinite;
}

@keyframes glow-lavender {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.3); }
}

.etiquette-tagline {
  font-family: 'Pixelify Sans', monospace;
  font-size: 1.1rem;
  color: var(--soju-peach);
  margin: 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  font-style: italic;
}

/* Main section */
.etiquette-section {
  margin: 20px auto 100px;
  width: min(1200px, calc(100% - 40px));
  padding: 60px 40px;
  box-sizing: border-box;
  position: relative;
  z-index: 10;
}

/* Sound toggle button */
.etiquette-sound-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: var(--soju-glow-front);
  border: 2px solid var(--soju-lavender);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 100;
}

.etiquette-sound-toggle:hover {
  background: rgba(195, 182, 255, 0.4);
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(195, 182, 255, 0.6);
}

.etiquette-sound-toggle.muted {
  opacity: 0.5;
  background: rgba(100, 100, 100, 0.2);
  border-color: #888;
}

.etiquette-sound-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--soju-lavender);
}

.etiquette-sound-toggle.muted svg {
  fill: #888;
}

/* Cards grid */
.etiquette-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 25px;
  margin: 40px 0;
  perspective: 1000px;
}

@media (max-width: 1200px) {
  .etiquette-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 820px) {
  .etiquette-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .etiquette-grid { grid-template-columns: 1fr; }
}

/* Card container (flip wrapper) */
.etiquette-card {
  position: relative;
  width: 100%;
  min-height: 280px;
  cursor: pointer;
  transition: box-shadow 0.3s ease;
}

.etiquette-card:hover {
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25), 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Card inner (handles the flip) */
.etiquette-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 280px;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

/* Flip on hover (desktop) or .flipped class (mobile) */
@media (hover: hover) {
  .etiquette-card:hover .etiquette-card-inner {
    transform: rotateY(180deg);
  }
}

.etiquette-card.flipped .etiquette-card-inner {
  transform: rotateY(180deg);
}

/* Front and back shared styles */
.etiquette-card-front,
.etiquette-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  min-height: 280px;
  backface-visibility: hidden;
  border-radius: 12px;
  padding: 25px 18px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.15),
    0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Front of card */
.etiquette-card-front {
  background: linear-gradient(135deg, rgba(195, 182, 255, 0.08) 0%, rgba(195, 182, 255, 0.05) 100%),
              rgba(34, 33, 43, 0.7);
  border: 2px solid var(--soju-border-front);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.4),
    0 0 20px var(--soju-glow-front),
    inset 0 1px 0 rgba(195, 182, 255, 0.15);
}

.etiquette-card-icon {
  width: 70px;
  height: 70px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 4px 8px var(--soju-glow-front));
  animation: icon-float 3s ease-in-out infinite;
}

@keyframes icon-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.etiquette-card-icon svg {
  width: 100%;
  height: 100%;
}

.etiquette-card-title {
  font-family: 'Pixelify Sans', monospace;
  font-size: 1rem;
  color: var(--soju-text-front);
  margin: 0;
  line-height: 1.4;
  font-weight: 600;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

/* Back of card */
.etiquette-card-back {
  background: linear-gradient(135deg, rgba(255, 182, 217, 0.12) 0%, rgba(255, 214, 165, 0.12) 100%),
              rgba(43, 40, 51, 0.7);
  border: 2px solid var(--soju-border-back);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transform: rotateY(180deg);
  gap: 15px;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.4),
    0 0 20px rgba(255, 214, 165, 0.25),
    inset 0 1px 0 rgba(255, 214, 165, 0.2);
}

.etiquette-card-label {
  font-family: 'Pixelify Sans', monospace;
  font-size: 0.75rem;
  color: var(--soju-peach);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--soju-accent-pink), var(--soju-peach)) 1;
  padding-bottom: 4px;
}

.etiquette-card-why {
  font-family: 'Pixelify Sans', monospace;
  font-size: 0.95rem;
  color: var(--soju-text-back);
  margin: 0;
  line-height: 1.5;
  font-weight: 500;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.etiquette-card-humor {
  font-family: 'Pixelify Sans', monospace;
  font-size: 0.8rem;
  color: rgba(255, 246, 227, 0.85);
  font-style: italic;
  margin-top: 10px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Practice mode section */
.etiquette-practice {
  margin: 60px auto 0;
  padding: 40px;
  background: linear-gradient(135deg, var(--soju-glow-front), rgba(255, 214, 165, 0.08));
  border: 2px dashed var(--soju-lavender);
  border-radius: 15px;
  text-align: center;
}

.etiquette-practice-header {
  font-family: 'Pixelify Sans', monospace;
  font-size: 1.2rem;
  color: var(--soju-lavender);
  margin-bottom: 10px;
  text-shadow: 0 0 15px var(--soju-glow-front);
}

.etiquette-practice-subtitle {
  font-family: 'Pixelify Sans', monospace;
  font-size: 0.85rem;
  color: var(--soju-peach);
  margin-bottom: 30px;
}

.etiquette-practice-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.etiquette-practice-btn {
  font-family: 'Pixelify Sans', monospace;
  font-size: 0.85rem;
  padding: 12px 24px;
  background: var(--soju-glow-front);
  border: 2px solid var(--soju-lavender);
  border-radius: 8px;
  color: var(--soju-lavender);
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: lowercase;
}

.etiquette-practice-btn:hover {
  background: rgba(195, 182, 255, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--soju-glow-front);
}

.etiquette-practice-btn.active {
  background: var(--soju-lavender);
  color: var(--soju-text-dark);
}

/* Practice animation canvas */
.etiquette-practice-stage {
  margin-top: 30px;
  min-height: 200px;
  position: relative;
  display: none;
  align-items: center;
  justify-content: center;
}

.etiquette-practice-stage.active {
  display: flex;
}

/* Pour animation */
.practice-pour {
  width: 120px;
  height: 120px;
  position: relative;
}

.practice-bottle {
  width: 60px;
  height: 100px;
  background: linear-gradient(135deg, var(--soju-lavender), #9d8ee5);
  border-radius: 5px 5px 0 0;
  position: absolute;
  top: 0;
  left: 0;
  animation: pour-tilt 2s ease-in-out infinite;
  transform-origin: bottom left;
}

.practice-bottle::before {
  content: '';
  width: 20px;
  height: 30px;
  background: #9d8ee5;
  position: absolute;
  top: -25px;
  left: 20px;
  border-radius: 3px 3px 0 0;
}

.practice-glass {
  width: 50px;
  height: 60px;
  border: 3px solid var(--soju-peach);
  border-top: none;
  border-radius: 0 0 5px 5px;
  position: absolute;
  bottom: 0;
  right: 0;
  background: linear-gradient(to top, rgba(255, 214, 165, 0.3), transparent);
}

.practice-liquid {
  width: 10px;
  height: 0;
  background: rgba(195, 182, 255, 0.8);
  position: absolute;
  top: 40px;
  left: 55px;
  animation: liquid-flow 2s ease-in-out infinite;
  border-radius: 5px;
}

@keyframes pour-tilt {
  0%, 30%, 100% { transform: rotate(0deg); }
  50%, 80% { transform: rotate(-45deg); }
}

@keyframes liquid-flow {
  0%, 30%, 100% { height: 0; opacity: 0; }
  40%, 70% { height: 40px; opacity: 1; }
}

/* Receive animation (two hands) */
.practice-receive {
  width: 150px;
  height: 150px;
  position: relative;
}

.practice-hands {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.practice-hand {
  width: 60px;
  height: 80px;
  background: #ffcc80;
  border-radius: 30px 30px 10px 10px;
  position: absolute;
  animation: hand-receive 2.5s ease-in-out infinite;
}

.practice-hand.left {
  left: 10px;
  transform-origin: right center;
}

.practice-hand.right {
  right: 10px;
  transform-origin: left center;
  animation-delay: 0.2s;
}

.practice-receive-glass {
  width: 50px;
  height: 70px;
  border: 3px solid var(--soju-peach);
  border-top: 3px solid var(--soju-lavender);
  border-radius: 5px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(to top, rgba(255, 214, 165, 0.3), transparent);
  z-index: 10;
}

@keyframes hand-receive {
  0%, 100% { transform: translateY(10px) scale(0.95); opacity: 0.7; }
  50% { transform: translateY(0) scale(1); opacity: 1; }
}

/* Turn away animation */
.practice-turn {
  width: 120px;
  height: 120px;
  position: relative;
}

.practice-head {
  width: 80px;
  height: 80px;
  background: #ffcc80;
  border-radius: 50%;
  position: absolute;
  top: 20px;
  left: 20px;
  animation: head-turn 3s ease-in-out infinite;
}

.practice-head::before {
  content: '';
  width: 10px;
  height: 10px;
  background: #2a2a2a;
  border-radius: 50%;
  position: absolute;
  top: 30px;
  left: 25px;
  animation: eye-close 3s ease-in-out infinite;
}

.practice-head::after {
  content: '';
  width: 20px;
  height: 3px;
  background: var(--soju-accent-pink);
  border-radius: 2px;
  position: absolute;
  bottom: 25px;
  left: 30px;
}

@keyframes head-turn {
  0%, 30%, 100% { transform: rotateY(0deg); }
  50%, 80% { transform: rotateY(-45deg); }
}

@keyframes eye-close {
  0%, 40%, 100% { opacity: 1; }
  45%, 55% { opacity: 0.3; }
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .etiquette-section {
    padding: 40px 20px;
  }

  .etiquette-practice {
    padding: 30px 20px;
  }

  .etiquette-practice-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .etiquette-practice-btn {
    width: 100%;
  }
}

/* Sparkle effect on card flip */
.card-sparkle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--soju-lavender);
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  animation: sparkle-pop 0.6s ease-out;
  box-shadow: 0 0 8px var(--soju-glow-front);
}

@keyframes sparkle-pop {
  0% { opacity: 0; transform: scale(0); }
  50% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0) translateY(-20px); }
}